HEATKEYS

A collection of FREE, easy-to-understand science, technology, and how-it-works articles for the whole family!

YouTube is a place to discover, watch, upload and share videos.

HowStuffWorks can answer your home and garden questions. Find explanations, reviews, opinions and prices on home and garden items at HowStuffWorks.

Home l efergy

Manufacturer of The Energy Detective, TED, a real-time in-home electricity management system that provides accurate data can be viewed remotely.

Complete home energy education resource and store. Energy saving electricity monitors, power strips, lights & bulbs, programmable thermostats. 100% satisfaction guaranteed.

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...

We provide energy efficiency services including home energy audits, insulation, spray foam, cellulose, air sealing, home performance contracting and more.

Smarthome - Home Automation, Remote Control, Lighting Control, Whole Home Audio/Video IR Distribution, Surveillance, Security.

We are a growth-oriented, diversified energy holding company. Black Hills Energy, our non-regulated wholesale business group, consists of power generation, fuel production and energy marketing. Black Hills Power, our electric utility, provides servic...

Physics, astronomy and science news, community, education and reference. Job board, directories, forums, chat, education reference, fun and more.

Heating degree days and cooling degree days for thousands of locations worldwide. Download free data in a simple spreadsheet format.